168659452847 has 16 divisors (see below), whose sum is σ = 176456928000. Its totient is φ = 161205898392.

The previous prime is 168659452837. The next prime is 168659452849. The reversal of 168659452847 is 748254956861.

168659452847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168659452847 - 2¹² = 168659448751 is a prime.

It is a super-2 number, since 2×168659452847² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168659452849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19207304 + ... + 19216082.

It is an arithmetic number, because the mean of its divisors is an integer number (11028558000).

Almost surely, 2^168659452847 is an apocalyptic number.

168659452847 is a deficient number, since it is larger than the sum of its proper divisors (7797475153).

168659452847 is an frugal number, since it uses more digits than its factorization.

168659452847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427 (or 10381 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 65.

The spelling of 168659452847 in words is "one hundred sixty-eight billion, six hundred fifty-nine million, four hundred fifty-two thousand, eight hundred forty-seven".